diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txtindex 7a527f7..f19f1e5 100644--- a/tools/perf/Documentation/perf-list.txt+++ b/tools/perf/Documentation/perf-list.txt@@ -61,6 +61,17 @@ raw encoding of 0x1A8 can be used: You should refer to the processor specific documentation for getting these details. Some of them are referenced in the SEE ALSO section below.

+Some raw events -- like the Intel OFFCORE events -- support additional+parameters. These can be appended after a ':'.++For example on a multi socket Intel Nehalem:++ perf stat -e r1b7:20ff -a sleep 1++Profile the OFFCORE_RESPONSE.ANY_REQUEST with event mask REMOTE_DRAM_0+that measures any access to DRAM on another socket. Upto two parameters can+be specified with additional ':'+ OPTIONS -------